Railway signaling apparatus



(No Model.)

W H WALSH RAILWAY SIGNALING APPARATUS.

No. 534,414. Patented Feb. 19, 1895.

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3 ATENT WVILLIAM H. IVALSH, OFv ALBANY, NEIV YORK.

RAILWAY SIGNALINGAPPARATUS.

SPECIFICATION forming part of Letters Patent No. 534,414, dated February 19, 1895.

' Application filed September 26,1894. Serial No. 524.156. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM H. WALSH, of Albany, in the county of Albany and State of New York, have invented a new and useful Improvement in Railway Signaling Apparatns, of which the following is a specification.

My invention relates to an improvementin railway signaling apparatus in which provision is made for giving notice to the engineers of two trains approaching a railway crossing, of the position of their respective trains in time to stop one of the trains while the other advances over the crossing.

A further object is to provide means whereby a train on the crossing circuit can signal to the engineer of the following train on the same track, so as to prevent a rear end collision, should the first mentioned train stop upon the crossing circuit.

The accompanying drawing represents a plan view of a double track railway crossing, the locomotives being represented conventionally in position approaching the crossing, one on each of the four tracks. I

One set of double tracks is represented by A, A and-the other by B, B. The locomotives on the tracks A, A, B, B are denoted respectively by O, C O 'and C and each is supposed to be traveling in a direction toward the track crossings. The rails of each track are dividedinto insulated sections as follows: The rails a of the track A are insulatedupon opposite sides of the crossing from the rails a at the right and from the rails a at the left. The rails a of the track A are insulated from the rails a on the left and from the rails a on the right. In like manner the rails b of the track B are insulated upon opposite sides of the crossing from the rails b on one side and from the rails b on the op-,.

along which the train runs in one direction and the conductors d 02 of the track B, extending along the section b b have connections with the rails b but not with the'rails b The conductors D, D are further connected with the rails 22 of the tracks B, B by electric conductors E, E and with the rails b of 'the track B by electric conductors e, e. The

conductors D D are connected with the rails bet the track B by conductors E E and with the rails 17 by conductors, e 6

The conductors d, d of the track B are connected with the rails or by electric conductors F, F and with the rails a of the track A, by conductorsfif', and the conductors 61 d of the track B are connected with the rails a by electric conductors F F and with the rails a by f? and f 7 I The locomotives are'each provided with a pair of brushes, represented by G, G, which are in electric communication through a battery H, carried by the locomotive, and the hell I, or other well known or suitable signal,

also carried by the locomotive.

In operation, suppose a train to be approaching the crossing on the track A and a train to be approaching the crossing on the track B. Vhichever of these trains reaches the insulated section of the crossing first will immediately give notice to the other while it is yet on the insulated section next adjacent to the crossing to the effect that it is about to cross the tracks and that the train then the farthest from the crossing must stop and await the crossing of the more advanced train. This notice will be given through the follow ing circuit and each engineer will be notified of the fact that the other has received the signal, by the sounding of his own. For instance, the locomotive 0 having advanced toward the crossing onto the rails b, b, the locomotive 0, when coming onto the rails a, will connectthrough its brushes G, Gthe conductors extending along the insulated section a and hence the rails a, which are electrically connected with said conductors. The rails o; are connected, by electric conductors F, F, with the conductors (1, cl, extending along the insulated section Z), l), which conductors are electrically connected by brushes G, G of the locomotive C and, the circuit being now complete through the batteries and signal on each locomotive G and C the information will be complete. In the same manner, the engineer of the locomotive G will be notified at the same time of the approach of the locomotive C nearer to the crossing, so

7 that the way will be clear for the locomotive O and its train to pass on over the crossing, while the locomotives C, C and their trains farther from the crossings await the clear track. In the same manner, if the locomoformation to that effect and they would be stopped to await the advance over the crossing of the train or trains which, by their approach to the crossing, had gained the right of way. i

What I claim is- Electrical signaling apparatus, comprising crossing insulated track sections, electric conductors extending along said insulated crossing track sections and connected with adjacent insulated track sections but not with the track sections along which they extend, electric conductors between the electric conductors of one track section and the rails, of a crossing track section and circuit closers, including batteries and signals,carried bytrains passing along the tracks, substantially as set forth.

\VILLIAM. H. l/VALSII. 

